Question

Mention one role of beta-galactosidase in lac operon.

Answer 1

Beta-galactosidase:

Beta-galactosidase is a family of glycoside hydrolase enzymes that break down glycosidic bonds to catalyze the hydrolysis of Beta-galactosidase to monosaccharides.

Role of Beta-galactosidase:

1. Beta-galactosidase has dual-functional activity.
2. It hydrolyzes galactose and glucose from lactose and catalyzes the intramolecular isomerization of lactose to allolactose, which is a lac operon stimulant.